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| author | James Bottomley <James.Bottomley@suse.de> | 2011-05-18 16:20:10 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-06-03 09:31:42 +0900 |
| commit | 294319fea7169f8a4abb48b1e9b3b98c7334e465 (patch) | |
| tree | 761b6153591b89cc63c2d5a57a8d301e4bb0477a /drivers/clocksource | |
| parent | 071f305d6f2ecd2239f148858ead57a2f4fb16d9 (diff) | |
block: add proper state guards to __elv_next_request
commit 0a58e077eb600d1efd7e54ad9926a75a39d7f8ae upstream.
blk_cleanup_queue() calls elevator_exit() and after this, we can't
touch the elevator without oopsing. __elv_next_request() must check
for this state because in the refcounted queue model, we can still
call it after blk_cleanup_queue() has been called.
This was reported as causing an oops attributable to scsi.
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/clocksource')
0 files changed, 0 insertions, 0 deletions